Which of the following is NOT a verified exception in the use of Koch's postulates?

Which of the following is NOT a verified exception in the use of Koch's postulates?




A) Some diseases have poorly defined etiologies.
B) Some pathogens can cause several disease conditions.
C) Some human diseases have no other known animal host.
D) Some diseases are not caused by microbes.
E) Some diseases are noncommunicable.



Answer: E


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